| 1 |
606 |
jeremybenn |
/*
|
| 2 |
|
|
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
|
| 3 |
|
|
* All rights reserved.
|
| 4 |
|
|
*
|
| 5 |
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
| 6 |
|
|
* are permitted provided that the following conditions are met:
|
| 7 |
|
|
*
|
| 8 |
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
| 9 |
|
|
* this list of conditions and the following disclaimer.
|
| 10 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
| 11 |
|
|
* this list of conditions and the following disclaimer in the documentation
|
| 12 |
|
|
* and/or other materials provided with the distribution.
|
| 13 |
|
|
* 3. The name of the author may not be used to endorse or promote products
|
| 14 |
|
|
* derived from this software without specific prior written permission.
|
| 15 |
|
|
*
|
| 16 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
| 17 |
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
| 18 |
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
| 19 |
|
|
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
| 20 |
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
| 21 |
|
|
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
| 22 |
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
| 23 |
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
| 24 |
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
| 25 |
|
|
* OF SUCH DAMAGE.
|
| 26 |
|
|
*
|
| 27 |
|
|
* This file is part of the lwIP TCP/IP stack.
|
| 28 |
|
|
*
|
| 29 |
|
|
* Author: Adam Dunkels <adam@sics.se>
|
| 30 |
|
|
*
|
| 31 |
|
|
*/
|
| 32 |
|
|
#ifndef __LWIP_IP_ADDR_H__
|
| 33 |
|
|
#define __LWIP_IP_ADDR_H__
|
| 34 |
|
|
|
| 35 |
|
|
#include "lwip/arch.h"
|
| 36 |
|
|
|
| 37 |
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
| 38 |
|
|
# include "arch/bpstruct.h"
|
| 39 |
|
|
#endif
|
| 40 |
|
|
PACK_STRUCT_BEGIN
|
| 41 |
|
|
struct ip_addr {
|
| 42 |
|
|
PACK_STRUCT_FIELD(u32_t addr);
|
| 43 |
|
|
} PACK_STRUCT_STRUCT;
|
| 44 |
|
|
PACK_STRUCT_END
|
| 45 |
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
| 46 |
|
|
# include "arch/epstruct.h"
|
| 47 |
|
|
#endif
|
| 48 |
|
|
|
| 49 |
|
|
/*
|
| 50 |
|
|
* struct ipaddr2 is used in the definition of the ARP packet format in
|
| 51 |
|
|
* order to support compilers that don't have structure packing.
|
| 52 |
|
|
*/
|
| 53 |
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
| 54 |
|
|
# include "arch/bpstruct.h"
|
| 55 |
|
|
#endif
|
| 56 |
|
|
PACK_STRUCT_BEGIN
|
| 57 |
|
|
struct ip_addr2 {
|
| 58 |
|
|
PACK_STRUCT_FIELD(u16_t addrw[2]);
|
| 59 |
|
|
} PACK_STRUCT_STRUCT;
|
| 60 |
|
|
PACK_STRUCT_END
|
| 61 |
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
| 62 |
|
|
# include "arch/epstruct.h"
|
| 63 |
|
|
#endif
|
| 64 |
|
|
|
| 65 |
|
|
/* For compatibility with BSD code */
|
| 66 |
|
|
struct in_addr {
|
| 67 |
|
|
u32_t s_addr;
|
| 68 |
|
|
};
|
| 69 |
|
|
|
| 70 |
|
|
struct netif;
|
| 71 |
|
|
|
| 72 |
|
|
extern const struct ip_addr ip_addr_any;
|
| 73 |
|
|
extern const struct ip_addr ip_addr_broadcast;
|
| 74 |
|
|
|
| 75 |
|
|
/** IP_ADDR_ can be used as a fixed IP address
|
| 76 |
|
|
* for the wildcard and the broadcast address
|
| 77 |
|
|
*/
|
| 78 |
|
|
#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
|
| 79 |
|
|
#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
|
| 80 |
|
|
|
| 81 |
|
|
#define INADDR_NONE ((u32_t)0xffffffff) /* 255.255.255.255 */
|
| 82 |
|
|
#define INADDR_LOOPBACK ((u32_t)0x7f000001) /* 127.0.0.1 */
|
| 83 |
|
|
|
| 84 |
|
|
/* Definitions of the bits in an Internet address integer.
|
| 85 |
|
|
|
| 86 |
|
|
On subnets, host and network parts are found according to
|
| 87 |
|
|
the subnet mask, not these masks. */
|
| 88 |
|
|
|
| 89 |
|
|
#define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000) == 0)
|
| 90 |
|
|
#define IN_CLASSA_NET 0xff000000
|
| 91 |
|
|
#define IN_CLASSA_NSHIFT 24
|
| 92 |
|
|
#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
|
| 93 |
|
|
#define IN_CLASSA_MAX 128
|
| 94 |
|
|
|
| 95 |
|
|
#define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000) == 0x80000000)
|
| 96 |
|
|
#define IN_CLASSB_NET 0xffff0000
|
| 97 |
|
|
#define IN_CLASSB_NSHIFT 16
|
| 98 |
|
|
#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
|
| 99 |
|
|
#define IN_CLASSB_MAX 65536
|
| 100 |
|
|
|
| 101 |
|
|
#define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000) == 0xc0000000)
|
| 102 |
|
|
#define IN_CLASSC_NET 0xffffff00
|
| 103 |
|
|
#define IN_CLASSC_NSHIFT 8
|
| 104 |
|
|
#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
|
| 105 |
|
|
|
| 106 |
|
|
#define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000) == 0xe0000000)
|
| 107 |
|
|
#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
|
| 108 |
|
|
#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
|
| 109 |
|
|
#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
|
| 110 |
|
|
#define IN_MULTICAST(a) IN_CLASSD(a)
|
| 111 |
|
|
|
| 112 |
|
|
#define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
|
| 113 |
|
|
#define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
|
| 114 |
|
|
|
| 115 |
|
|
#define IN_LOOPBACKNET 127 /* official! */
|
| 116 |
|
|
|
| 117 |
|
|
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
| 118 |
|
|
(ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \
|
| 119 |
|
|
((u32_t)((b) & 0xff) << 16) | \
|
| 120 |
|
|
((u32_t)((c) & 0xff) << 8) | \
|
| 121 |
|
|
(u32_t)((d) & 0xff))
|
| 122 |
|
|
|
| 123 |
|
|
#define ip_addr_set(dest, src) (dest)->addr = \
|
| 124 |
|
|
((src) == NULL? 0:\
|
| 125 |
|
|
(src)->addr)
|
| 126 |
|
|
/**
|
| 127 |
|
|
* Determine if two address are on the same network.
|
| 128 |
|
|
*
|
| 129 |
|
|
* @arg addr1 IP address 1
|
| 130 |
|
|
* @arg addr2 IP address 2
|
| 131 |
|
|
* @arg mask network identifier mask
|
| 132 |
|
|
* @return !0 if the network identifiers of both address match
|
| 133 |
|
|
*/
|
| 134 |
|
|
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
|
| 135 |
|
|
(mask)->addr) == \
|
| 136 |
|
|
((addr2)->addr & \
|
| 137 |
|
|
(mask)->addr))
|
| 138 |
|
|
#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
|
| 139 |
|
|
|
| 140 |
|
|
#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0)
|
| 141 |
|
|
|
| 142 |
|
|
u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *);
|
| 143 |
|
|
|
| 144 |
|
|
#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))
|
| 145 |
|
|
|
| 146 |
|
|
#define ip_addr_debug_print(debug, ipaddr) \
|
| 147 |
|
|
LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
|
| 148 |
|
|
ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \
|
| 149 |
|
|
ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \
|
| 150 |
|
|
ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \
|
| 151 |
|
|
ipaddr ? (u16_t)ntohl((ipaddr)->addr) & 0xff : 0))
|
| 152 |
|
|
|
| 153 |
|
|
/* These are cast to u16_t, with the intent that they are often arguments
|
| 154 |
|
|
* to printf using the U16_F format from cc.h. */
|
| 155 |
|
|
#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
|
| 156 |
|
|
#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
|
| 157 |
|
|
#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
|
| 158 |
|
|
#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
|
| 159 |
|
|
|
| 160 |
|
|
#endif /* __LWIP_IP_ADDR_H__ */
|
